Rotary engine.



PATENT oiririon;

Jona isAKsoN, oFBoNNER, MonrANA.

ROTARY ENGINE.

ne. seau-fee.

Specification of Letters Patent.

rPatented nec. 25, ieee.

Application tiled February 21, 1906. Seriel'No. 302.169.

To rtl/l whom it may cmi/eww:

Be it known that l, JoiiN Isaiisoiv, of Bonner, in the county of Missoula and State of Montana, have invented a new and improved Roter r Engine, of 'which the following` is a full, cear, and exact description.

. rphis invention relates to an engine ot tli rotary type that is provided with a cylindrical s ace havin r a eylinder-head at a point to divi e it entirel", so that it forms a partition, and which is also provided with a wheel or disk revolving inside the cylinder and provided with pistons adapted to travel through the cylinder and to slide within the wheel or disk, so as to clear the cylinder-head or partition.

The invention is designed, furthermore, to provide a inea-ns outside the easing ot the cylinder. to slide the pistons in and out 'at the certain predetermined points.

Reference is to he had to the aceoinpanying drawings, forming a part of this specitication, in which similar figures of reference in-A dicate corresponding parts in all the views. Figure 1 shows the engine partly in section and partly in elevation. Fig. is a vertical central section of the' engine with the wheel or disk turned to show the pistons in elevation and also showing the partition or cylin-j der-head in elevation, and Fig. 3 is aperspeetive view 'of one of the pistons with the arms for guiding it.

.ln/the accom anying drawings, 1Q is a suitl jable base on w ich is set the casing il, both or" theni being cut vont to form a cylinder 12, Win-.fn can be of any suitable shape in crosssection and is shown in the drawings as rectangular, being oblong` At a suitable point artition or cylinder-head 13 is shown,

tight closure.

A suitable nuinber of pistons 15, prefer- Q ably two, are fitted to slide with their suporting. rods or `ingersgl in the slots 17. .lhese pistons l'serve to give motion to the disk` it, 4and in order that they 'may be nidad in and out, so as to serve as abutnients tor the steam-pressure,'and also to enable them to clear the partition 13, each piston has parallel with the shaft 18 a 'pin 19, which enters in and is guided by the cam-slot 20a in the web 20, which is secured to the base and casini` 11 by bolts 21 or equivalent tastenings.

opened.

en the pistons and the' disk 14 revolve, the pin travels within the vaforesaid slot a, and, as shown in dotted servethe purpose of pushing the pistons 15 inward and holding them inward at the desired points. I

1t will be understood that steam-ti ht joints would be used where necessary in t 's' engine, so as to prevent leakage of steam.

On each side of the partition 13 and eX- tending in through the easing 11 can be placed the inlets 22, provided Withsuitable valves, being fed bya niain steam-pipe 22a. The outlets 23 are arranged on either side of the inlets and are also provided 'with valves. When the engine is expected to be rtated in the direction of the arrow in Fig. 1, the lefthand inlet-valvewould be opened and the outlet 23 on the corresponding side closed,

and on the other side of the cylinder-head the inlet 22 would be closed and the outlet 23 N 9W as the wheel or disk, with its pistons, rotates it is driven by thepressure of tli'e steam, which has a steady low in the direction` of the arrow, and it receives full the slot 20l1 commences to leave a true oircular path, and it is then drawn inward by the cam shape of the slot 201in the casir-ig, whereby it opens to allowy the steam to ass around from in front of it toward the out et 23 on the right-hand side, the piston being drawn in, as

above described, to clear the cylinder-head 13, and when it goes beyond the cylinder-head itcoinniences to proect again intd the cylinder and bythe time it projects fully vinto the cylinder 12 it takes'up the full force of the steam, thereby relieving the other piston, which in turn goes through the saine per formanoe. In thfis'way we have constantly a piston lreceiving the full pressure of the steam, and these pistons also clear the cylinder-head, making a smooth-'running engine. It will also be obvious that bya reversal of theopened and closedginlets and exhausts the direction of rotation of the engine can be reversed.

IOC

5 ing a cylindena partition entirely Aclosing;l

Having thus fully described my invention, E in the wheel or disk, 'a pin on one of the fln- 1o I claim as new and desire to secure by Letgers, a ring scoured to the casing having nk ters Patenty l slot to receive the pin, the ring being of suoli A rotary engine olnprising a casing inclosshape as to 4withdraw the piston when passing the partition.

JOHN ISAKSON.

the -cylinder/a wheel -arrax ed to revolve within the easingr and the oy inder, pistons carried by the wheel or disk, fingers scoured to the pistons and arranged to slide in slots Witnesses 1 LYBANDER M. Davis, HERBERT T. WlLKlNsoN. 

